SolidCraft
An open-source parametric 3D CAD application built in pure Rust.
Sketch, constrain, and build solids with a parametric feature timeline. Change a dimension
and watch your model rebuild. Run it on your desktop, in your browser, or let AI agents
model through the built-in MCP server.
[![Download for Windows][badge-windows]][windows-msi]
[![Download for macOS][badge-macos]][macos-dmg]
[![Download for Linux][badge-linux]][linux-appimage]
[![Get it from the Snap Store][badge-snap]][snap-store]
[![Try it in your browser][badge-web]][web-app]
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SolidCore
*A Raspberry Pi 4 case from an empty design: a sketch dimensioned with the board's parameters, extrude, fillet, shell, the rim rounded in one pick, an M2.5 standoff patterned on the 58 × 49 mm hole rectangle, port cut-outs, vent slots, "Pi 4" engraved in DejaVu Sans Bold and a PETG material defined in the design, with its mass in Properties, then height 24 → 32 mm in Parameters and it all rebuilds. 9× playback. [Full video](https://github.com/tangency-labs/solidcraft/raw/refs/heads/main/docs/screenshots/demo-0.8.mp4), recorded with the [demo script](examples/demo/record_ui.sh).*
## Download
- **Windows:** the [installer][windows-msi], or `winget install bherbruck.SolidCraft`.
- **macOS:** the [disk image][macos-dmg] (Apple silicon and Intel).
- **Linux:** the [AppImage][linux-appimage], or `sudo snap install solidcraft` ([Snap Store][snap-store]).
- **Web:** [try it in your browser][web-app], no install.
ARM64 and 32-bit builds, portable zip, .deb, .rpm, Flatpak and the other packages are on the
[downloads page](docs/downloads.md). The downloads aren't signed yet: on Windows choose
**More info**, then **Run anyway** in SmartScreen; on macOS right-click SolidCraft and choose **Open**
the first time. On SolidCraft 0.11 to 0.14, download once by hand; see
[updating](https://docs.solidcraft.io/guide/updates.html#updating-from-011-to-014).
## What works
Early but usable for simple parts: 75 of 76 public reference parts match their analytic or
FreeCAD-computed volume, area, centre of mass and bounding box ([oracle](docs/oracle.md)); the
other is a tracked bug.
- **Sketches and constraints:** lines, arcs, splines, text and more, solved by our own constraint solver, with parameter-driven dimensions.
- **Features:** extrude, revolve, sweep, loft, fillet, chamfer, shell, draft, holes, threads, patterns, mirror, split and combine on an editable parametric timeline.
- **Parameters and configurations** with unit-aware expressions.
- **Assemblies** with joints, motion studies, contact sets, interference and mass properties.
- **Sheet metal** with flanges, hems, fold/unfold and flat patterns, and plastic enclosure features.
- **Files:** STEP, IGES, 3MF, STL, OBJ and glTF in and out where supported, URDF export, `.solidcraft` designs.
- **Desktop app, browser app, headless CLI and MCP server**, all running the same commands.
The full list is in [docs/capabilities.md](docs/capabilities.md) and [docs/features.md](docs/features.md);
status and plans are in [ROADMAP.md](ROADMAP.md). See also [what people built](docs/showcase.md),
[3D mouse support](docs/3d-mouse.md) and the [architecture](docs/architecture.md).
## Build from source
```sh
cargo run --release -p solidcraft -- --sample # desktop app with a sample part
cargo run --release -p solidcraft-cli -- commands # the command registry
cargo run --release -p solidcraft-cli -- run examples/bracket.json --out bracket.step
cargo xtask ci # fmt, clippy, tests, icons, assets, layers, wasm
```
More commands, the Windows cross-build and the browser build are in [docs/building.md](docs/building.md).
## AI agents (MCP)
`solidcraft-cli mcp` is a [Model Context Protocol](https://modelcontextprotocol.io) server. Headless it
runs its own design session, or with `--connect` it drives the running app so you can watch.
Claude Code: `claude mcp add solidcraft -- solidcraft-cli mcp`. Tools, access rules and an
example session: [docs/mcp.md](docs/mcp.md).
## Scripts
A script is a JSON list of the same commands the UI runs, executed with `solidcraft-cli run`.
Format and example: [docs/scripts.md](docs/scripts.md). Pages can also be driven through the
[browser command API](docs/browser-api.md).
## Contributing
Help is welcome. [CONTRIBUTING.md](CONTRIBUTING.md) covers how to build and test, the code map,
the clean-room and licence rules, and where help is wanted most. Open work is in
[GitHub issues](https://github.com/tangency-labs/solidcraft/issues); chat is on
[Discord](https://discord.gg/FtU4NQNVDH).
## Sponsors
[](https://www.blacksmith.sh)
SolidCraft's continuous integration runs on [Blacksmith](https://www.blacksmith.sh), which
sponsors its CI minutes.
## Licence
MIT OR Apache-2.0, at your option. Developed under the
[clean-room contribution rules](AGENTS.md); third-party code and assets retain their
documented licences and attribution.
SolidCraft is independent. Behaviour is designed from public documentation, general CAD
conventions and user feedback. Reference tests use analytic values and open-source tools.
SolidCraft is not affiliated with, sponsored by or endorsed by Autodesk, Dassault Systèmes, PTC,
Siemens or any other CAD vendor. Fusion, AutoCAD, Inventor, SolidWorks, Onshape, Creo, Blender and
Tinkercad are trademarks of their respective owners, named only to describe compatibility
(see [NOTICE](NOTICE)).
[badge-windows]: https://img.shields.io/badge/Windows-Download-0078D6?style=for-the-badge&logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%2CPHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0id2hpdGUiPjxwYXRoIGQ9Ik0yIDJoOS41djkuNUgyek0xMi41IDJIMjJ2OS41aC05LjV6TTIgMTIuNWg5LjVWMjJIMnpNMTIuNSAxMi41SDIyVjIyaC05LjV6Ii8%2BPC9zdmc%2B
[badge-macos]: https://img.shields.io/badge/macOS-Download-333333?style=for-the-badge&logo=apple&logoColor=white
[badge-linux]: https://img.shields.io/badge/Linux-AppImage-E95420?style=for-the-badge&logo=linux&logoColor=white
[badge-snap]: https://img.shields.io/badge/Snap-Snap_Store-82BEA0?style=for-the-badge&logo=snapcraft&logoColor=white
[badge-web]: https://img.shields.io/badge/Web-Try_in_browser-2EA44F?style=for-the-badge&logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%2CPHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJ3aGl0ZSIgc3Ryb2tlLXdpZHRoPSIyIj48Y2lyY2xlIGN4PSIxMiIgY3k9IjEyIiByPSIxMCIvPjxwYXRoIGQ9Ik0yIDEyaDIwTTEyIDJhMTUgMTUgMCAwIDEgMCAyME0xMiAyYTE1IDE1IDAgMCAwIDAgMjAiLz48L3N2Zz4%3D
[windows-msi]: https://github.com/tangency-labs/solidcraft/releases/latest/download/solidcraft-windows-x64.msi
[macos-dmg]: https://github.com/tangency-labs/solidcraft/releases/latest/download/solidcraft-macos-universal.dmg
[linux-appimage]: https://github.com/tangency-labs/solidcraft/releases/latest/download/solidcraft-linux-x86_64.AppImage
[snap-store]: https://snapcraft.io/solidcraft
[web-app]: https://solidcraft.io/app